package dq.study.designmodel.principle.开闭原则;

/**
 * @author dongqun
 * @date 2020/9/16 11:11
 */
public class Dialer {

    public void enterDigit(int digit){
        System.out.print("input "+digit+"...");
    }

    public void  dial(){
        System.out.println("dial...");
    }
}
